For questions 9 - 12, please refer to the table given below: P TR MR TC MC HOO $30 $0 $15 $30 $30 $30 $25 $10 2 $30 $60 $30 $40 $15 $30 $90 $30 $60 $20 4 $30 $120 $30 $85 $25 5 $30 $150 $30 $115 $30 6 $30 $180 $30 $150 $35 10. The maximum profit available to the firm is A) $20. B) $30. C) $35. D) $155. E) $180